| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a copper wire for a magnet wire and a method for producing a copper wire for a magnet wire which can obtain a copper wire (rough drawn wire) for a magnet wire of high quality having excellent machinability and easily subjected to a peeling process, and in which defects such as fogging are hard to be induced upon a peeling process, and, by the effective peeling process therefor, defects remaining in the surface are reduced, and the generation of defects such as blister in insulation coating is reduced upon insulation coating. <P>SOLUTION: According to an upward drawing continuous casting method (up-casting method), to the molten metal of copper or a copper alloy, casting is started at 1,100 to 1,200°C, and the casting is performed at a casting rate of 4 to 5m/min to produce a base wire (rough-drawn wire) of copper or a copper alloy in which the average crystal grain size of a columnar structure 3 composing the surface 2 is 200 to 300μm. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
